compact: add deletion metrics to mixins

Signed-off-by: Mathis Raguin <mathis@cri.epita.fr>

CHANGELOG.md

@@ -24,6 +24,7 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 - [#2521](https://github.com/thanos-io/thanos/pull/2521) Sidecar: add `thanos_sidecar_reloader_reloads_failed_total`, `thanos_sidecar_reloader_reloads_total`, `thanos_sidecar_reloader_watch_errors_total`, `thanos_sidecar_reloader_watch_events_total` and `thanos_sidecar_reloader_watches` metrics.
 - [#2412](https://github.com/thanos-io/thanos/pull/2412) ui: add React UI from Prometheus upstream. Currently only accessible from Query component as only `/graph` endpoint is migrated.
 - [#2532](https://github.com/thanos-io/thanos/pull/2532) Store: Added hidden option for experimental caching bucket, that can cache chunks into shared memcached. This can speed up querying and reduce number of requests to object storage.
+- [#3380](https://github.com/thanos-io/thanos/pull/3380) compact: add deletion metrics to mixins.
 
 ### Changed
 

mixin/dashboards/compact.libsonnet

@@ -80,6 +80,40 @@ local g = import '../lib/thanos-grafana-builder/builder.libsonnet';
           g.latencyPanel('thanos_compact_garbage_collection_duration_seconds', 'namespace="$namespace",job=~"$job"')
         )
       )
+      .addRow(
+        g.row('Blocks deletion')
+        .addPanel(
+          g.panel(
+            'Deletion Rate',
+            'Shows deletion rate of blocks already marked for deletion.'
+          ) +
+          g.queryPanel(
+            'sum(rate(thanos_compactor_blocks_cleaned_total{namespace="$namespace",job=~"$job"}[$interval])) by (job)',
+            'Blocks cleanup {{job}}'
+          ) +
+          g.stack
+        )
+        .addPanel(
+          g.panel(
+            'Deletion Error Rate',
+            'Shows deletion failures rate of blocks already marked for deletion.'
+          ) +
+          g.queryPanel(
+            'sum(rate(thanos_compactor_block_cleanup_failures_total{namespace="$namespace",job=~"$job"}[$interval])) by (job)',
+            'Blocks cleanup failures {{job}}'
+          )
+        )
+        .addPanel(
+          g.panel(
+            'Marking Rate',
+            'Shows rate at which blocks are marked for deletion (from GC and retention policy).'
+          ) +
+          g.queryPanel(
+            'sum(rate(thanos_compactor_blocks_marked_for_deletion_total{namespace="$namespace",job=~"$job"}[$interval])) by (job)',
+            'Blocks marked {{job}}'
+          )
+        )
+      )
       .addRow(
         g.row('Sync Meta')
         .addPanel(